./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label40.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 900911d117d2a4a3062d2b03399834d3e2a3c11368e6157a9f6639c66e4382eb --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:03:59,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:03:59,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:03:59,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:03:59,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:03:59,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:03:59,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:03:59,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:03:59,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:03:59,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:03:59,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:03:59,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:03:59,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:03:59,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:03:59,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:03:59,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:03:59,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:03:59,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:03:59,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:03:59,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:03:59,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:03:59,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:03:59,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:03:59,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:03:59,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:03:59,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:03:59,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:03:59,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:03:59,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:03:59,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:03:59,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:03:59,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:03:59,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:03:59,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:03:59,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:03:59,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:03:59,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:03:59,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:03:59,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:03:59,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:03:59,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:03:59,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 22:03:59,285 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:03:59,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:03:59,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:03:59,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:03:59,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:03:59,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:03:59,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:03:59,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:03:59,287 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:03:59,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:03:59,288 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:03:59,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 22:03:59,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:03:59,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:03:59,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:03:59,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:03:59,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:03:59,289 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:03:59,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:03:59,289 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:03:59,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:03:59,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:03:59,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:03:59,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:03:59,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:03:59,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:03:59,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:03:59,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:03:59,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 22:03:59,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 22:03:59,292 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:03:59,292 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:03:59,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:03:59,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:03:59,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 900911d117d2a4a3062d2b03399834d3e2a3c11368e6157a9f6639c66e4382eb [2021-12-15 22:03:59,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:03:59,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:03:59,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:03:59,474 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:03:59,475 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:03:59,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label40.c [2021-12-15 22:03:59,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82d95334/e878365f8b714cfe8f4d7f000aa71767/FLAG044fed302 [2021-12-15 22:03:59,959 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:03:59,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label40.c [2021-12-15 22:03:59,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82d95334/e878365f8b714cfe8f4d7f000aa71767/FLAG044fed302 [2021-12-15 22:03:59,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82d95334/e878365f8b714cfe8f4d7f000aa71767 [2021-12-15 22:03:59,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:03:59,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:03:59,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:03:59,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:04:00,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:04:00,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:03:59" (1/1) ... [2021-12-15 22:04:00,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d23d716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00, skipping insertion in model container [2021-12-15 22:04:00,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:03:59" (1/1) ... [2021-12-15 22:04:00,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:04:00,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:04:00,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label40.c[16376,16389] [2021-12-15 22:04:00,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:04:00,348 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:04:00,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label40.c[16376,16389] [2021-12-15 22:04:00,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:04:00,424 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:04:00,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00 WrapperNode [2021-12-15 22:04:00,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:04:00,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:04:00,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:04:00,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:04:00,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (1/1) ... [2021-12-15 22:04:00,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (1/1) ... [2021-12-15 22:04:00,504 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2021-12-15 22:04:00,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:04:00,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:04:00,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:04:00,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:04:00,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (1/1) ... [2021-12-15 22:04:00,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (1/1) ... [2021-12-15 22:04:00,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (1/1) ... [2021-12-15 22:04:00,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (1/1) ... [2021-12-15 22:04:00,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (1/1) ... [2021-12-15 22:04:00,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (1/1) ... [2021-12-15 22:04:00,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (1/1) ... [2021-12-15 22:04:00,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:04:00,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:04:00,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:04:00,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:04:00,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (1/1) ... [2021-12-15 22:04:00,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:04:00,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:04:00,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 22:04:00,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 22:04:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:04:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 22:04:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:04:00,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:04:00,785 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:04:00,786 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:04:01,400 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:04:01,407 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:04:01,407 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:04:01,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:04:01 BoogieIcfgContainer [2021-12-15 22:04:01,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:04:01,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:04:01,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:04:01,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:04:01,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:03:59" (1/3) ... [2021-12-15 22:04:01,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3718ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:04:01, skipping insertion in model container [2021-12-15 22:04:01,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:04:00" (2/3) ... [2021-12-15 22:04:01,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3718ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:04:01, skipping insertion in model container [2021-12-15 22:04:01,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:04:01" (3/3) ... [2021-12-15 22:04:01,416 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label40.c [2021-12-15 22:04:01,422 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:04:01,422 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:04:01,452 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:04:01,456 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 22:04:01,456 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:04:01,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:01,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-15 22:04:01,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:01,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:01,478 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:01,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:01,481 INFO L85 PathProgramCache]: Analyzing trace with hash 304749070, now seen corresponding path program 1 times [2021-12-15 22:04:01,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:01,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794181908] [2021-12-15 22:04:01,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:01,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:01,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:01,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:01,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794181908] [2021-12-15 22:04:01,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794181908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:01,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:01,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:04:01,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818892775] [2021-12-15 22:04:01,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:01,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:01,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:01,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:01,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:01,782 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:02,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:02,339 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-12-15 22:04:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:02,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-15 22:04:02,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:02,348 INFO L225 Difference]: With dead ends: 528 [2021-12-15 22:04:02,349 INFO L226 Difference]: Without dead ends: 266 [2021-12-15 22:04:02,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:02,353 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 108 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:02,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 44 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:04:02,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-12-15 22:04:02,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-12-15 22:04:02,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4792452830188678) internal successors, (392), 265 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:02,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2021-12-15 22:04:02,386 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 87 [2021-12-15 22:04:02,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:02,386 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2021-12-15 22:04:02,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:02,387 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2021-12-15 22:04:02,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 22:04:02,389 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:02,389 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:02,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 22:04:02,390 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:02,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:02,390 INFO L85 PathProgramCache]: Analyzing trace with hash -362464970, now seen corresponding path program 1 times [2021-12-15 22:04:02,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:02,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686896672] [2021-12-15 22:04:02,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:02,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:02,424 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:02,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:02,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686896672] [2021-12-15 22:04:02,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686896672] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:02,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:02,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:04:02,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643994694] [2021-12-15 22:04:02,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:02,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:02,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:02,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:02,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:02,427 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:02,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:02,743 INFO L93 Difference]: Finished difference Result 792 states and 1171 transitions. [2021-12-15 22:04:02,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:02,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-15 22:04:02,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:02,745 INFO L225 Difference]: With dead ends: 792 [2021-12-15 22:04:02,745 INFO L226 Difference]: Without dead ends: 528 [2021-12-15 22:04:02,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:02,747 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:02,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:02,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-12-15 22:04:02,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-12-15 22:04:02,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.413662239089184) internal successors, (745), 527 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:02,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2021-12-15 22:04:02,765 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 92 [2021-12-15 22:04:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:02,765 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2021-12-15 22:04:02,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:02,765 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2021-12-15 22:04:02,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-15 22:04:02,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:02,769 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:02,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 22:04:02,769 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:02,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:02,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1173409711, now seen corresponding path program 1 times [2021-12-15 22:04:02,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:02,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608182750] [2021-12-15 22:04:02,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:02,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:02,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:02,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608182750] [2021-12-15 22:04:02,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608182750] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:02,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:02,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:04:02,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114683336] [2021-12-15 22:04:02,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:02,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:02,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:02,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:02,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:02,815 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:03,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:03,118 INFO L93 Difference]: Finished difference Result 1447 states and 2032 transitions. [2021-12-15 22:04:03,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:03,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-15 22:04:03,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:03,121 INFO L225 Difference]: With dead ends: 1447 [2021-12-15 22:04:03,121 INFO L226 Difference]: Without dead ends: 921 [2021-12-15 22:04:03,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:03,129 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:03,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 56 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:03,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-12-15 22:04:03,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2021-12-15 22:04:03,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.3219264892268694) internal successors, (1043), 789 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:03,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1043 transitions. [2021-12-15 22:04:03,165 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1043 transitions. Word has length 102 [2021-12-15 22:04:03,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:03,166 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1043 transitions. [2021-12-15 22:04:03,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1043 transitions. [2021-12-15 22:04:03,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-15 22:04:03,174 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:03,174 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:03,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 22:04:03,175 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:03,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:03,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1298175041, now seen corresponding path program 1 times [2021-12-15 22:04:03,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:03,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590858461] [2021-12-15 22:04:03,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:03,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-15 22:04:03,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:03,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590858461] [2021-12-15 22:04:03,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590858461] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:03,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:03,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:04:03,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899078758] [2021-12-15 22:04:03,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:03,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:03,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:03,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:03,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:03,225 INFO L87 Difference]: Start difference. First operand 790 states and 1043 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:03,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:03,524 INFO L93 Difference]: Finished difference Result 1840 states and 2437 transitions. [2021-12-15 22:04:03,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:03,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-12-15 22:04:03,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:03,530 INFO L225 Difference]: With dead ends: 1840 [2021-12-15 22:04:03,530 INFO L226 Difference]: Without dead ends: 1052 [2021-12-15 22:04:03,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:03,537 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 131 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:03,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 61 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:03,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-12-15 22:04:03,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2021-12-15 22:04:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 1.2759276879162702) internal successors, (1341), 1051 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1341 transitions. [2021-12-15 22:04:03,568 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1341 transitions. Word has length 103 [2021-12-15 22:04:03,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:03,568 INFO L470 AbstractCegarLoop]: Abstraction has 1052 states and 1341 transitions. [2021-12-15 22:04:03,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:03,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1341 transitions. [2021-12-15 22:04:03,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-15 22:04:03,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:03,570 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:03,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 22:04:03,570 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:03,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:03,571 INFO L85 PathProgramCache]: Analyzing trace with hash -277021721, now seen corresponding path program 1 times [2021-12-15 22:04:03,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:03,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373376256] [2021-12-15 22:04:03,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:03,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:04:03,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:03,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373376256] [2021-12-15 22:04:03,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373376256] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:03,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:03,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:03,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709043861] [2021-12-15 22:04:03,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:03,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:04:03,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:03,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:04:03,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:03,610 INFO L87 Difference]: Start difference. First operand 1052 states and 1341 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:04,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:04,088 INFO L93 Difference]: Finished difference Result 2626 states and 3312 transitions. [2021-12-15 22:04:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:04:04,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-15 22:04:04,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:04,093 INFO L225 Difference]: With dead ends: 2626 [2021-12-15 22:04:04,093 INFO L226 Difference]: Without dead ends: 1576 [2021-12-15 22:04:04,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:04,094 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 386 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:04,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 59 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:04:04,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-12-15 22:04:04,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2021-12-15 22:04:04,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2465373961218837) internal successors, (1800), 1444 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:04,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1800 transitions. [2021-12-15 22:04:04,115 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1800 transitions. Word has length 106 [2021-12-15 22:04:04,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:04,116 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1800 transitions. [2021-12-15 22:04:04,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:04,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1800 transitions. [2021-12-15 22:04:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-15 22:04:04,120 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:04,121 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:04,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 22:04:04,121 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:04,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:04,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1010370438, now seen corresponding path program 1 times [2021-12-15 22:04:04,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:04,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295908850] [2021-12-15 22:04:04,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:04,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:04,188 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-12-15 22:04:04,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:04,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295908850] [2021-12-15 22:04:04,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295908850] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:04,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:04,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:04:04,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492552053] [2021-12-15 22:04:04,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:04,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:04,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:04,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:04,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:04,190 INFO L87 Difference]: Start difference. First operand 1445 states and 1800 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:04,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:04,470 INFO L93 Difference]: Finished difference Result 1709 states and 2111 transitions. [2021-12-15 22:04:04,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:04,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-12-15 22:04:04,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:04,475 INFO L225 Difference]: With dead ends: 1709 [2021-12-15 22:04:04,476 INFO L226 Difference]: Without dead ends: 1707 [2021-12-15 22:04:04,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:04,477 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 67 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:04,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 31 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:04,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-12-15 22:04:04,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1445. [2021-12-15 22:04:04,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2458448753462603) internal successors, (1799), 1444 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:04,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1799 transitions. [2021-12-15 22:04:04,517 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1799 transitions. Word has length 124 [2021-12-15 22:04:04,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:04,517 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1799 transitions. [2021-12-15 22:04:04,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:04,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1799 transitions. [2021-12-15 22:04:04,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-12-15 22:04:04,520 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:04,520 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:04,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 22:04:04,521 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:04,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:04,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1457174530, now seen corresponding path program 1 times [2021-12-15 22:04:04,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:04,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077454744] [2021-12-15 22:04:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:04,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-15 22:04:04,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:04,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077454744] [2021-12-15 22:04:04,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077454744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:04,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:04,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:04,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049347444] [2021-12-15 22:04:04,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:04,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:04:04,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:04,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:04:04,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:04,577 INFO L87 Difference]: Start difference. First operand 1445 states and 1799 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:05,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:05,093 INFO L93 Difference]: Finished difference Result 3412 states and 4258 transitions. [2021-12-15 22:04:05,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:04:05,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2021-12-15 22:04:05,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:05,098 INFO L225 Difference]: With dead ends: 3412 [2021-12-15 22:04:05,099 INFO L226 Difference]: Without dead ends: 1969 [2021-12-15 22:04:05,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:04:05,101 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 222 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:05,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 51 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:04:05,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-12-15 22:04:05,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2021-12-15 22:04:05,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.2080890973036342) internal successors, (2061), 1706 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:05,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2061 transitions. [2021-12-15 22:04:05,124 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2061 transitions. Word has length 179 [2021-12-15 22:04:05,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:05,125 INFO L470 AbstractCegarLoop]: Abstraction has 1707 states and 2061 transitions. [2021-12-15 22:04:05,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:05,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2061 transitions. [2021-12-15 22:04:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-15 22:04:05,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:05,128 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:05,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 22:04:05,128 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:05,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1559404259, now seen corresponding path program 1 times [2021-12-15 22:04:05,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:05,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899868727] [2021-12-15 22:04:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:05,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-15 22:04:05,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:05,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899868727] [2021-12-15 22:04:05,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899868727] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:05,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:04:05,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:04:05,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234194316] [2021-12-15 22:04:05,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:05,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:05,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:05,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:05,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:05,199 INFO L87 Difference]: Start difference. First operand 1707 states and 2061 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:05,472 INFO L93 Difference]: Finished difference Result 3805 states and 4579 transitions. [2021-12-15 22:04:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2021-12-15 22:04:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:05,477 INFO L225 Difference]: With dead ends: 3805 [2021-12-15 22:04:05,477 INFO L226 Difference]: Without dead ends: 2100 [2021-12-15 22:04:05,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:04:05,479 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 93 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:05,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 55 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:05,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2021-12-15 22:04:05,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2021-12-15 22:04:05,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.2128470332063146) internal successors, (2228), 1837 states have internal predecessors, (2228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:05,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2228 transitions. [2021-12-15 22:04:05,504 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2228 transitions. Word has length 192 [2021-12-15 22:04:05,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:05,505 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 2228 transitions. [2021-12-15 22:04:05,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:05,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2228 transitions. [2021-12-15 22:04:05,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-12-15 22:04:05,508 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:05,508 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:05,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 22:04:05,509 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:05,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:05,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1609305411, now seen corresponding path program 1 times [2021-12-15 22:04:05,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:05,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794036230] [2021-12-15 22:04:05,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:05,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:05,604 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 207 proven. 36 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-12-15 22:04:05,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:05,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794036230] [2021-12-15 22:04:05,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794036230] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:04:05,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680017897] [2021-12-15 22:04:05,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:05,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:04:05,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:04:05,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:04:05,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 22:04:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:05,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:04:05,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:04:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-12-15 22:04:06,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:04:06,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680017897] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:06,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:04:06,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:04:06,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083221272] [2021-12-15 22:04:06,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:06,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:06,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:06,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:06,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:04:06,052 INFO L87 Difference]: Start difference. First operand 1838 states and 2228 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:06,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:06,366 INFO L93 Difference]: Finished difference Result 3936 states and 4740 transitions. [2021-12-15 22:04:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:06,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 235 [2021-12-15 22:04:06,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:06,372 INFO L225 Difference]: With dead ends: 3936 [2021-12-15 22:04:06,372 INFO L226 Difference]: Without dead ends: 2100 [2021-12-15 22:04:06,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:04:06,375 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 88 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:06,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 191 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:06,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2021-12-15 22:04:06,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969. [2021-12-15 22:04:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.1834349593495934) internal successors, (2329), 1968 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:06,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2329 transitions. [2021-12-15 22:04:06,403 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2329 transitions. Word has length 235 [2021-12-15 22:04:06,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:06,403 INFO L470 AbstractCegarLoop]: Abstraction has 1969 states and 2329 transitions. [2021-12-15 22:04:06,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:06,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2329 transitions. [2021-12-15 22:04:06,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-12-15 22:04:06,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:06,407 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:06,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 22:04:06,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:04:06,626 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:06,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:06,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1010162980, now seen corresponding path program 1 times [2021-12-15 22:04:06,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:06,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586147619] [2021-12-15 22:04:06,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:06,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:06,770 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 239 proven. 49 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-12-15 22:04:06,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:06,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586147619] [2021-12-15 22:04:06,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586147619] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:04:06,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642041740] [2021-12-15 22:04:06,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:06,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:04:06,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:04:06,772 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:04:06,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 22:04:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:06,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:04:06,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:04:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-12-15 22:04:07,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:04:07,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642041740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:07,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:04:07,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-15 22:04:07,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557105347] [2021-12-15 22:04:07,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:07,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:07,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:07,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:07,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-15 22:04:07,244 INFO L87 Difference]: Start difference. First operand 1969 states and 2329 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:07,518 INFO L93 Difference]: Finished difference Result 3936 states and 4656 transitions. [2021-12-15 22:04:07,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:07,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2021-12-15 22:04:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:07,523 INFO L225 Difference]: With dead ends: 3936 [2021-12-15 22:04:07,523 INFO L226 Difference]: Without dead ends: 1969 [2021-12-15 22:04:07,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-15 22:04:07,525 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 96 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:07,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 180 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:07,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-12-15 22:04:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1969. [2021-12-15 22:04:07,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.1498983739837398) internal successors, (2263), 1968 states have internal predecessors, (2263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:07,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2263 transitions. [2021-12-15 22:04:07,548 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2263 transitions. Word has length 248 [2021-12-15 22:04:07,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:07,548 INFO L470 AbstractCegarLoop]: Abstraction has 1969 states and 2263 transitions. [2021-12-15 22:04:07,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2263 transitions. [2021-12-15 22:04:07,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-12-15 22:04:07,552 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:04:07,552 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:07,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 22:04:07,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-15 22:04:07,771 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:04:07,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:04:07,771 INFO L85 PathProgramCache]: Analyzing trace with hash 988183046, now seen corresponding path program 1 times [2021-12-15 22:04:07,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:04:07,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418218952] [2021-12-15 22:04:07,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:07,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:04:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:07,882 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 236 proven. 142 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-15 22:04:07,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:04:07,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418218952] [2021-12-15 22:04:07,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418218952] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:04:07,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359448209] [2021-12-15 22:04:07,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:04:07,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:04:07,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:04:07,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:04:07,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 22:04:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:04:08,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:04:08,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:04:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-12-15 22:04:08,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:04:08,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359448209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:04:08,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:04:08,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-12-15 22:04:08,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289459710] [2021-12-15 22:04:08,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:04:08,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:04:08,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:04:08,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:04:08,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:04:08,497 INFO L87 Difference]: Start difference. First operand 1969 states and 2263 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:08,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:04:08,853 INFO L93 Difference]: Finished difference Result 3934 states and 4523 transitions. [2021-12-15 22:04:08,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:04:08,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 257 [2021-12-15 22:04:08,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:04:08,854 INFO L225 Difference]: With dead ends: 3934 [2021-12-15 22:04:08,854 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 22:04:08,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:04:08,857 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 51 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:04:08,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 190 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:04:08,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 22:04:08,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 22:04:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 22:04:08,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 257 [2021-12-15 22:04:08,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:04:08,858 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 22:04:08,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:04:08,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 22:04:08,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 22:04:08,860 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 22:04:08,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 22:04:09,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:04:09,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 22:04:09,367 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-12-15 22:04:09,367 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-12-15 22:04:09,367 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,368 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,369 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,374 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,374 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,374 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-12-15 22:04:09,375 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,376 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse4 (<= ~a20~0 0)) (.cse3 (<= ~a21~0 0)) (.cse2 (= ~a17~0 1)) (.cse6 (<= ~a16~0 5)) (.cse0 (= ~a21~0 1)) (.cse1 (= ~a20~0 1)) (.cse5 (<= 15 ~a8~0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3) (and .cse0 .cse4 .cse5) (and .cse0 .cse4 .cse6) (and .cse4 .cse6 .cse3 .cse2) (and .cse0 .cse1 .cse6) (and .cse0 .cse1 (not (= 1 ~a7~0)) .cse5))) [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-12-15 22:04:09,377 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,378 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-12-15 22:04:09,379 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,379 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-12-15 22:04:09,379 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-12-15 22:04:09,379 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-12-15 22:04:09,379 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-12-15 22:04:09,379 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-12-15 22:04:09,379 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-12-15 22:04:09,379 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-12-15 22:04:09,379 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-12-15 22:04:09,379 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-12-15 22:04:09,384 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-12-15 22:04:09,384 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-12-15 22:04:09,385 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-12-15 22:04:09,385 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-12-15 22:04:09,385 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,385 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse4 (<= ~a20~0 0)) (.cse3 (<= ~a21~0 0)) (.cse2 (= ~a17~0 1)) (.cse6 (<= ~a16~0 5)) (.cse0 (= ~a21~0 1)) (.cse1 (= ~a20~0 1)) (.cse5 (<= 15 ~a8~0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3) (and .cse0 .cse4 .cse5) (and .cse0 .cse4 .cse6) (and .cse4 .cse6 .cse3 .cse2) (and .cse0 .cse1 .cse6) (and .cse0 .cse1 (not (= 1 ~a7~0)) .cse5))) [2021-12-15 22:04:09,385 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,385 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,386 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,386 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,386 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-12-15 22:04:09,386 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 22:04:09,386 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 447) no Hoare annotation was computed. [2021-12-15 22:04:09,386 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-12-15 22:04:09,387 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-12-15 22:04:09,387 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-12-15 22:04:09,387 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-12-15 22:04:09,387 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-12-15 22:04:09,387 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-12-15 22:04:09,387 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-12-15 22:04:09,387 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,387 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,387 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,387 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,388 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:04:09,388 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-12-15 22:04:09,388 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-12-15 22:04:09,388 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-12-15 22:04:09,388 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-12-15 22:04:09,390 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:04:09,392 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 22:04:09,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:04:09 BoogieIcfgContainer [2021-12-15 22:04:09,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 22:04:09,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 22:04:09,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 22:04:09,414 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 22:04:09,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:04:01" (3/4) ... [2021-12-15 22:04:09,416 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 22:04:09,430 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 22:04:09,430 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 22:04:09,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 22:04:09,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 22:04:09,520 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 22:04:09,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 22:04:09,521 INFO L158 Benchmark]: Toolchain (without parser) took 9525.41ms. Allocated memory was 107.0MB in the beginning and 285.2MB in the end (delta: 178.3MB). Free memory was 73.3MB in the beginning and 233.0MB in the end (delta: -159.7MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2021-12-15 22:04:09,521 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 39.7MB in the beginning and 39.6MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:04:09,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.50ms. Allocated memory is still 107.0MB. Free memory was 73.0MB in the beginning and 64.7MB in the end (delta: 8.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 22:04:09,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.53ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 59.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 22:04:09,521 INFO L158 Benchmark]: Boogie Preprocessor took 84.82ms. Allocated memory is still 107.0MB. Free memory was 59.0MB in the beginning and 54.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 22:04:09,522 INFO L158 Benchmark]: RCFGBuilder took 818.03ms. Allocated memory was 107.0MB in the beginning and 146.8MB in the end (delta: 39.8MB). Free memory was 54.8MB in the beginning and 89.0MB in the end (delta: -34.2MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2021-12-15 22:04:09,523 INFO L158 Benchmark]: TraceAbstraction took 8003.96ms. Allocated memory was 146.8MB in the beginning and 285.2MB in the end (delta: 138.4MB). Free memory was 89.0MB in the beginning and 247.7MB in the end (delta: -158.7MB). Peak memory consumption was 130.8MB. Max. memory is 16.1GB. [2021-12-15 22:04:09,523 INFO L158 Benchmark]: Witness Printer took 106.01ms. Allocated memory is still 285.2MB. Free memory was 247.7MB in the beginning and 233.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 22:04:09,525 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 39.7MB in the beginning and 39.6MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.50ms. Allocated memory is still 107.0MB. Free memory was 73.0MB in the beginning and 64.7MB in the end (delta: 8.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.53ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 59.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.82ms. Allocated memory is still 107.0MB. Free memory was 59.0MB in the beginning and 54.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 818.03ms. Allocated memory was 107.0MB in the beginning and 146.8MB in the end (delta: 39.8MB). Free memory was 54.8MB in the beginning and 89.0MB in the end (delta: -34.2MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8003.96ms. Allocated memory was 146.8MB in the beginning and 285.2MB in the end (delta: 138.4MB). Free memory was 89.0MB in the beginning and 247.7MB in the end (delta: -158.7MB). Peak memory consumption was 130.8MB. Max. memory is 16.1GB. * Witness Printer took 106.01ms. Allocated memory is still 285.2MB. Free memory was 247.7MB in the beginning and 233.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 447]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 11, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1536 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1536 mSDsluCounter, 947 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 737 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4198 IncrementalHoareTripleChecker+Invalid, 4935 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 737 mSolverCounterUnsat, 878 mSDtfsCounter, 4198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 771 GetRequests, 748 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1969occurred in iteration=9, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1179 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 35 NumberOfFragments, 151 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2950 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2465 NumberOfCodeBlocks, 2465 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2451 ConstructedInterpolants, 0 QuantifiedInterpolants, 8716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1526 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 2667/2894 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((a21 == 1 && a20 == 1) && a17 == 1) || (a20 == 1 && a21 <= 0)) || ((a21 == 1 && a20 <= 0) && 15 <= a8)) || ((a21 == 1 && a20 <= 0) && a16 <= 5)) || (((a20 <= 0 && a16 <= 5) && a21 <= 0) && a17 == 1)) || ((a21 == 1 && a20 == 1) && a16 <= 5)) || (((a21 == 1 && a20 == 1) && !(1 == a7)) && 15 <= a8) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((a21 == 1 && a20 == 1) && a17 == 1) || (a20 == 1 && a21 <= 0)) || ((a21 == 1 && a20 <= 0) && 15 <= a8)) || ((a21 == 1 && a20 <= 0) && a16 <= 5)) || (((a20 <= 0 && a16 <= 5) && a21 <= 0) && a17 == 1)) || ((a21 == 1 && a20 == 1) && a16 <= 5)) || (((a21 == 1 && a20 == 1) && !(1 == a7)) && 15 <= a8) RESULT: Ultimate proved your program to be correct! [2021-12-15 22:04:09,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE